User Guide

CHAPTER 2
2 - 60
f. EEPROM (IC4, IC5)
It possesses 32K bits of memory, and it allows erasing and writing of data. It is used to retain data
(various settings; printing environment, number of pages) after power is turned off.
g. Program ROM version up
When installing a ROM DIMM for version up to the slot (J1/J2/J3), the functions of the mounted
built-in program ROM will be stopped and its contents will be replaced by the contents held in the
newly installed ROM DIMM. (You need not remove the built-in program ROM.)
J5
J10
J7
Expansion RAM DIMM Slot
Expansion ROM DIMM Slot
J4
J9
J3 J2
J8
1
2
33
34
19
1
12
2
69 1 72 4
J1
69 1 72 4 69 1 72 4
1 26
25 50
144
143
1
34
36
18
A1 B1
A20 B20
IC5
IC4
CPU
ASIC
Figure 2-6-1